Isaac runs an electronic waste and recycling company and he has 20 computers running XP and wants an alternative to Windows 7 to upgrade to. Leo says that XUbuntu is a great option that's just as powerful, but it's free and open source, which is great for older and slower computers. There's also Lubuntu. Isaac wonders about malware, though. Leo says that only 1% of the market uses Linux, so nobody is writing viruses for that. It's more secure, easier to use, and will run great.